Diastolic blood pressure trial — research dashboard

N=39 subjects · Group A vs B · paired pre/post DBP, age, sex
Methods. Within-group: paired t-test on Post − Baseline DBP, with 95% CI for mean change and Cohen's dz. Between-group: Welch's t-test on changes, with 95% CI for the mean difference and Hedges' g. Baseline-adjusted: OLS regression Post ~ Baseline + Group (ANCOVA-style). KPIs and charts respond to filters; the stats panel always reflects the full sample.
N (filtered)
39
A=20 · B=19
Group A change
-15.20 mmHg
SD 2.97
Group B change
-4.74 mmHg
SD 2.47
Δ A − B (filtered)
-10.46 mmHg
A drops more
Hedges g (full)
-3.75
very large effect
p-value (full)
0.0001
Welch t-test

Pre → post DBP, paired

Each line is one subject. Slope shows the change from baseline to post.

Hypothesis tests

Full sample, regardless of filters.
Group A — paired t-test n=20
Mean change -15.20 mmHg [95% CI -16.59, -13.81]
t(19) = -22.91 · p < 0.0001 · d_z = -5.12 (very large)
Group B — paired t-test n=19
Mean change -4.74 mmHg [95% CI -5.93, -3.55]
t(18) = -8.36 · p < 0.0001 · d_z = -1.92 (very large)
Between groups (Welch t-test on changes) A − B
Mean difference -10.46 mmHg [95% CI -12.23, -8.69]
t(36.4) = -12.00 · p < 0.0001 · Hedges g = -3.75 (very large)
ANCOVA (baseline-adjusted) Post ~ Baseline + Group
Adjusted A vs B effect -10.56 mmHg [95% CI -12.05, -9.07]
p < 0.0001 · baseline coef = 0.26 (Post per +1 mmHg baseline)

Distribution of DBP change by group

Histogram of (Post − Baseline). Negative = blood pressure dropped.

Subgroup forest plot — DBP change [95% CI]

Mean change in mmHg with 95% CI by group × sex.
A · all (n=20)
-15.2 [-16.6, -13.8]
A · F (n=8)
-15.6 [-18.7, -12.6]
A · M (n=12)
-14.9 [-16.6, -13.3]
B · all (n=19)
-4.7 [-5.9, -3.5]
B · F (n=10)
-5.0 [-6.5, -3.5]
B · M (n=9)
-4.4 [-6.7, -2.2]
-20-15-10-505
mmHg change

Subject-level data

# ▲GroupSexAgeBaselinePostΔ
1AF43114105-9
2AM51116101-15
3AF4811998-21
4AF42115101-14
5AM49116105-11
6AM47117102-15
7AF5011899-19
8AM61120102-18
9AM43114103-11
10AM5111597-18
11AF47117101-16
12AM45116102-14
13AF54119104-15
14AM5211899-19
15AM42115102-13
16AF44114100-14
17AM48117102-15
18AF63120103-17
19AM41114100-14
20AM51117101-16
21BM39114113-1
22BF40116110-6
23BF39114109-5
24BM38114115+1
25BF39116109-7
26BM41114110-4
27BF56119115-4
29BM38114108-6
30BM57120113-7
31BF47117115-2
32BM48118110-8
33BF61121115-6
34BM49116111-5
35BM52118112-6
36BF55119111-8
37BF45116109-7
38BM42116112-4
39BF49117115-2
40BF50118115-3